Country comparison

Australia vs United States

Australia leads on 1 of 6 metrics, United States on 5. Here's the full side-by-side breakdown.

Population
27,614,411
341,784,857
▲ United States — a larger population
Area
7,692,024 km²
9,372,610 km²
▲ United States — more land area
GDP (nominal)
$1.8T
$30.77T
▲ United States — a bigger economy
GDP per capita
$65,130
$90,027
▲ United States — higher GDP per capita
Human Development Index
0.958
0.938
▲ Australia — a higher HDI
Population density
4 /km²
36 /km²
▲ United States — greater population density
Development profile (each axis 0–100%, higher is stronger)
WealthHealthHuman dev.InternetUrbanSurvival
Australia United States

Australia vs United States: the verdict

United States is the more populous of the two, home to 341.78 million people — about 12.4× the population of Australia (27.61 million).

On the economy, United States has the larger nominal GDP at $30.77T. But measured per person, United States comes out ahead on GDP per capita ($90,027), a better proxy for average living standards.

Geographically, United States is the larger country, spanning 9,372,610 km².

Australia records the higher Human Development Index (0.958), reflecting stronger combined outcomes in health, education and income (source: UNDP).

Overall, United States leads on more headline metrics in this comparison, though "which country is better" depends entirely on which measures matter to you.

Full breakdown

Australia
Economy
United States
GDP (PPP)
$1.96T
$29.18T
GDP per capita (PPP)
$72,111
$85,810
GDP growth
1.4%
2.2%
Inflation
2.9%
2.9%
Unemployment
4.1%
4.2%
Australia
People
United States
Life expectancy
83.1 yrs
78.9 yrs
Fertility rate
1.48
1.63
Population growth
1.5%
0.5%
Urban population
87.7%
80.2%
Infant mortality (per 1,000)
3.1
5.5
Australia
Quality of Life
United States
Internet users
96.1%
94.7%
Physicians (per 1,000)
4.09
3.68
Renewable energy
12.3%
10.9%
GDP over time (nominal, US$)
$0$8.08T$16.15T$24.23T$32.31T197019982025 Australia United States

Government & politics

Australia
Who holds power
United States
Government type
Federal constitutional monarchy (parliamentary)
Federal presidential republic
Head of state
Monarch (represented by the Governor-General)
President
Head of government
Prime Minister
President
Executive power
Prime Minister & Cabinet
President
Ceremonial head
Monarch / Governor-General
President
Commands military
Monarch (nominal), PM (effective)
President (Commander-in-Chief)
Legislature
House of Representatives & Senate
Bicameral Congress
Judiciary
Independent High Court
Independent Supreme Court

Australia

Australia combines a Westminster parliamentary system with a US-style elected Senate and a written federal constitution. The monarch is head of state, represented by the Governor-General, but power rests with the Prime Minister and Cabinet, drawn from the elected House of Representatives. Unusually, the Senate is powerful and fully elected, and the High Court can strike down laws that breach the constitution. Voting is compulsory.

United States

The United States has a presidential system with a strict separation of powers between three co-equal branches. The President is uniquely both head of state and head of government, elected separately from the legislature via the Electoral College. Congress writes the laws and controls spending; the President executes them and can veto legislation; the Supreme Court interprets the constitution. This system of checks and balances means power is deliberately divided — the President cannot dissolve Congress, and Congress can impeach the President.

Travel & practical

Australia
At a glance
United States
Capital
Canberra
Washington D.C.
Currency
AUD
USD
Languages
English
English
Dialing code
+61
+1201
Internet TLD
.au
.us

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Frequently asked questions

Which country has a higher GDP, Australia or United States?

United States has the higher nominal GDP at $30.77T, compared with $1.8T for Australia (World Bank).

Which country has a larger population, Australia or United States?

United States has the larger population with 341,784,857 people, versus 27,614,411 for Australia.

Which is larger in area, Australia or United States?

United States is larger, covering 9,372,610 km² compared with 7,692,024 km² for Australia.

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